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KA7541D fiches techniques PDF

Fairchild - Simple Ballast Controller

Numéro de référence KA7541D
Description Simple Ballast Controller
Fabricant Fairchild 
Logo Fairchild 





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KA7541D fiche technique
KA7541
Simple Ballast Controller
www.fairchildsemi.com
Features
• Internal soft start
• Flexible soft start frequency
• No lamp protection
• Trimmed 1.5% internal bandgap reference
• Under voltage lock out with 1.8V of hysteresis
• Totem pole output with high state clamp
• Low start up and operating current
Descriptions
The KA7541 provides simple and high performance
electronic ballast control functions. KA7541 is optimized for
electronic ballast requiring a minimum board area, reduced
component count and low power dissipation. Internal soft
start circuitry eliminates the need for an external soft start
PTC resistor. The initial soft start switching frequency and
soft start time can be adjusted depending on the types of
lamps. Protection circuitry has also been added to prevent
burning out of switches in no lamp condition. output gate
drive circuit clamps power MOSFET gate voltage
irrespective of supply voltage
8-DIP
1
8-SOP
1
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.3

PagesPages 14
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